How to Clean a Greasy Kitchen Range Hood Filter

Grease is the invisible enemy of your kitchen. Over time, the metal mesh filters in your range hood trap airborne fats, creating a sticky, dust-clogged barrier that kills your fan's efficiency and poses a genuine fire hazard. If you notice smoke lingering after cooking or oil dripping from the vent, your filter is overdue for a deep clean. Cleaning these filters isn't about scrubbing until your arms ache; it is about chemistry. By using high-heat water and the right degreasing agents, you can liquefy years of buildup in under an hour. When done well, the mesh should look like new, allowing your ventilation system to pull air freely and keep your kitchen atmosphere clean.

1. Unclip the Mesh Frame. Locate the spring-loaded release lever on the underside of the range hood. Carefully slide or pull the filter out, ensuring you don't drop it onto the stovetop.
2. Build Your Grease-Cutting Soak. Plug your kitchen sink and fill it with the hottest water your tap provides. Add a generous portion of heavy-duty degreasing dish soap and a half-cup of baking soda.
3. Let Chemistry Do the Work. Submerge the filters completely in the soapy water. Let them sit for at least 20 to 30 minutes until the water turns murky and the grease begins to float.
4. Attack Stubborn Buildup. Use a non-scratch nylon brush to scrub the mesh in a circular motion. If grease remains, sprinkle extra baking soda directly onto the brush.
5. Flush Away All Residue. Drain the sink and rinse the filters with fresh, hot water until no soap residue remains. Ensure every gap in the mesh is clear of loosened grime.
6. Seal in the Victory. Pat the filters dry with a microfiber cloth and let them air dry completely for at least one hour. Once dry, snap them back into the hood housing.